Go check out www.dieselplace.com
Read up on that site.
Look for a 2006 LBZ......first year with the 6 speed Allison tranny with tap + - They also don't have a DPF on them. That's what I own and love it!

Only $24k. I've got some more pics and can provide the component list (if I can find it). Anybody that's serious can give me a ring at 408-569-6040. I'll probably take it to spring ride if you want to check it out.
These rigs have become quite proplular with this motor and Limited package and seem to be going for near 20 stock. Obiously all the other extras are way way more the the extra 4 I'm asking. The fact that it has less then 75K miles is a big bonus as well. That being said, I think 24K is a steal.